Scott McKenzie (born Philip Wallach Blondheim III; January 10, 1939 – August 18, 2012) was an American singer and songwriter who recorded the 1967 hit single "San Francisco (Be Sure to Wear Flowers in
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd764c25c0b2f28fbc3044c161dd194f57b18efaa828e25d344923ac1554ee655. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9d80c3c8-1fbb-45a5-9384-7705e92b2ffc.json and https://artists.proofprofile.net/proofs/artist/9d80c3c8-1fbb-45a5-9384-7705e92b2ffc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9404047b7aea24897b1c3b24544a49a807528d8f4352833be16c739754d0fd9e. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10305119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dbc4ba21e074dd3bb69c2e40763c5fe11f45dabaa5f22d38459f5ca33ae1c04. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10305128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19945de3eccac2cc8a52b0f8d1f696d7054e952e6c73278c3e90b983a498db3f. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10305120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4846594b7d849cdf60141411eaf4a4dd2b41279f2b0e4d7929836a9b49a3e48. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10305126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e936369387f8e6086ad5aa4859ad7f510c9f706ec8a331ba78e81e7fe258ee2. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10305122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54ac3293d8e3638410fd63a2614fa4113558ea9da5dc314d56b2a6f28a344318. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10305127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8085d85fd6f88243f3b5b86e88244401cae117d068dec0dae3dd677ddd4ddcc. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10305123.
The Voice of Scott McKenzie (Expanded Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc93c5d7618911d1469bd383cac872bc162c5d89a388aeeac740c8880d87426bb. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10305125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x515db610100f2a1fa3bc525835f89df15cceb04311b2652a1e03e1fa6b6a54b4. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10305124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a28503624472b48042def8fe3807aa6af5f9b097084c5aabb32409455bd08a. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10906452.
San Francisco (Be Sure to Wear Flowers In Your Hair) - Mono Single Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b2f21f08698fdcd7f79b5f0601171fb6990f9754d67b9749fe7780da0ea5c9. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11709721.
What's the Difference (Chapter II) - Mono Single Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f6178b4ab209561c950ffb5dafac2351b476a80a9fdc2941834d843c3e675b. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11709724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c306bfcc1122f26ec428a0f6b0bf0953c1208c0e2897ddf62c6b73752816c82. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11206214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b4a969b9477bb20665f39d64d3e32b7687b8550a77a7963b8c28c17527d8fa. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US6R21226135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb4f6e2a9659cff2188b73ee71533ce8ef132b0a7449c16c95d98ce72ab828f0. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US6R21226136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e57f2b11ad1dfe20ffa67eca782611bf6d78f0765795db6df952c885754fb9. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US6R21226138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaaf1077d4307adf0f3de8d5d05c46bc65f8443ff5a1a41c1e2b4d784cae75b5. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US6R21226140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b9efd340135763f6e48e1d9cce68a23b28094f8a72a85215e21472a9a5c4cf6. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US6R21226143.
San Francisco (Be Sure to Wear Some Flowers in Your Hair)
San Francisco (Be Sure to Wear Flowers in Your Hair) [Live]
San Francisco (be Sure To Wear Some Flowers In Your Hair)
San Francisco (Be Sure to Wear Flowers in Your Hair)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95f7e2bf4cc6a25635c6dc215107a96f1a088ed38180d77f54797de6a5da47dd. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM16701025.
San Francisco (Be Sure to Wear Flowers in Your Hair) - Single Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eecc1a27c029c576893d95d47691f5375ca2e9e880ba6af181fb40c22dffbe2. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM16701024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eecc1a27c029c576893d95d47691f5375ca2e9e880ba6af181fb40c22dffbe2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM16701024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eecc1a27c029c576893d95d47691f5375ca2e9e880ba6af181fb40c22dffbe2. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM16701024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eecc1a27c029c576893d95d47691f5375ca2e9e880ba6af181fb40c22dffbe2. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM16701024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eecc1a27c029c576893d95d47691f5375ca2e9e880ba6af181fb40c22dffbe2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM16701024.